Resources on social skills

Finding interacting with women very strange and formidable may be a sign that you are not very comfortable socially in general, or at least not with people who aren't very very similar to you. These are general sites about social skills that you might find useful.

Approaching women sexually or romantically

Obviously this isn't something all men want, but it's a frequent source of difficulties for some geek men.
The basic principles are:

you're trying to do something mutually pleasurable, something that both (all) people will want. You cannot make someone want you or find your company pleasurable, so looking for sex or romance ethically means accepting that you will not be able to unilaterally create it with someone.

women might, can, and do say no. Listen to no and for signs of discomfort and when you see/hear them stop doing whatever it was.

try to avoid fixating on a particular woman (friend, colleague, celebrity) exclusively prior to having a mutual relationship with her, see Nice guy syndrome

make approaches suitable to the situation: a bite to eat together with a friend or after work drinks with a colleague are usually more suitable than, for example, red roses or skywriting for somebody who you aren't even sure is interested

watch how people around you get together with each other: fictional romances are highly unrealistic and often portray behaviour that is overbearing, strange, creepy or simply unlikely to work

approaching women who are strangers, especially in environments where they are trapped or not expecting approaches, is high stakes for both of you, and best attempted very casually if at all, with a strong awareness that any approach may be unwelcome.